Rotary machine.



H. T. CYPHERS & F. E. HOLMES.

ROTARY MACHINE.

APPUCATION FILED JULY Il, 1916.

Patented My 22, 11917.

2 SHEETS-SHEET i.

H. T. CYPI'IERS 6L F. EfHOLII/IES.

ROTARY MACHINE.

APPLICATION FILEDIULY 11| ISIS. v

atented May 22, 1917.

2 SHEETS--SHEET 2.

I IHIHIIIIIIIIIII III I II.

tUNITED!sra'rns' PATENT carica.y

HENRY T. CYPHERS AND FRANK E. HOLMES, 0Fv TORBANCE, CALIFORNIA.

ROTARY MACHINE.

and FRANK E. HOLMES, citizens of the` United States, both residing at Torrance, inthe county of Los Angeles and State of California, have invented a new and useful Rotary Machine, of which the following is a d specification.

Our invention relates to machines which may be utilized either as prime movers or as pumps or compressors. The particular embodiment of our machine shown 1n the l drawing is a compressor for compressing air or other gases, although the same machine may be used for other purposes as will be set forth more in detail hereinafter.

The principal object of our invention is to produce a rotary machine having an improved method of construction over previously invented machines of the same class.

A further object of the invention is to provide a machine in which the amount of compression may be variedat will within limits while the machine is running.

Other objects and advantages will be made evident hereinafter.

In the drawings, which are for illustrative purposes only:- n

n Figure 1 is a side View of the complete machine.

Fig. 2 is a plan view of the same machine with the adjustable element bent around to provide for maximum compression.

`Fig.-v 3 is a cross section through the center of the cylinders and pistons.

Fig. 4 is an enlarged cross section of a valve plate and valves.

Fig. 5 is a perspective view of a diaphragm. p

Fig. 6 is a perspective view of a cylinder.

Fig. 7 is an enlarged cross section through the fluid inlet and outlet means.

Fig. 8 is a diagrammatic view of the blower means.

ln the ,form of the invention illustrated in these drawings. a sub-base 11 is provided on which is rigidly secured a stationary "f bearing plate 12, this plate being provided teeth 17 on its outeredge, these worm teeth I being engaged by a worm 18 carried on a Specification of Letters Patent.

Patented May 22, 1`91 7.

Application led July 17, 1916. Serial No. 109,817. i

worm shaft 19 which turns in suitable bear,- ings 20 formed on the sub-base 11, a handA wheel 21 being provided for the purpose of turning the movable bearing plate 16. Formed on the movable bearing` plate 16 are bearings 22 4and 23. A diaphragm 25 is provided having the general shape shownV in' Fig. 5, and being provided with center pivots 26 and 27 located on either side thereof at right angles to each other. Secured to the diaphragm plate '25 by means of flanges 28 are two cylinders 29 and 30,v these cylinders being exact duplicates of each other, but being secured to the diaphragm plate 2 5 with their cylindrical axes at rightv angles to each other, these axes coinciding with the axes of t-he center pivots 26 and 27.

Surrounding the cylinders 29 and 30 is a casing 31 which is rigidly secured to the sub-base 11, this casing having the general form shown in Fig. 8, and being of spherical contour having its center in"'the geometrical center of the diaphragm 25. Secured to the louter surfaces of the cylinders.

29 and 30 are a series of vanes 32, these vanes turning with a small jclearance inside the casing 31 and serving tosuck air in at either end of the casing and discharge it through a spout to the outer air. The parts 31 and 32 form in effect a centrifugal air blower and serve tocool the machine by a. vigorous circulation of air. Located in the cylinders 29 and 30 are pistons 33 and 34, these pistons being exact duplicates of each.

other, but being set at right angles to each other to conform to the configuration and location of the cylinders'29 and 30 and the center pivots 26y and 27. Each of the pistons 33 and 34 consists of a body-35 having an outer cylindrical surface 36 adapted to fit into the cylinders 29 and 30. The bodies 35 when inplace make working spaces 37 and 38 inside the cylinders 29 and 30 and 100 between the ends of thexbody 35 and the diaphragm 25, the bodies 35 ltting'tightly against the center pivots 26 and 27 and making aptight joint therewith.

* Located in the faces'of the bodies 35 inside7 v105 and adjacent to the spaces 37 and 38 are valve plates 39, these valve plates being dovetailed in place as shown in Fig. 4 and' ,fastened with pins 40, or any other suitable Cut in the valve plates and cut in 11o n means. the bodies 35 are inlet ports 41 and pressure ports 42. Secured by means of screws 43 in t-he valve plates 39 is a valve barv 44, this valve bar extending across the valve plate 39 and clamping inlet valves 45 in place in a suitable cavity formed in the valve plate 39. The inlet valve 45 is a flat steel plate which has sulicient spring to normally seat against the valve plate 39, but which may be lifted from its seat by air entering the spaces 37 or 38 through the inlet ports 41. Located on the underside of the valve plates 39 are pressure valves 47, these valves being secured by means of a pressure valve bar 48 and screws 49. The pressure valves 47 are also dat plates seating normally and closing the pressure ports 42, so as to prevent air entering the spaces 37 or 38 through the pressure ports 42. The inlet ports 41 are connected through openings 50 with the interiorof an inlet pipe 51, and the pressure ports are similarly connected through openings 53 with a pressure pipe 52. the pressure pipe 52 being inside the inlet pipe 51. rl`he inlet pipes 51 pass through open slots 54, these slots belng of sufiicient width to allowvthe plpes 51 to pass therethrough. and of sufiicient length to allow the cylinders 29 and 30 to oscillate on the pipes 51 and the bodies 35. as will be explained hereinafter. y

Secured on each of the pressure pipes 51 are pulleys 55 and 56, these pulleys serving to drive the pipes 51, and through these pipes to drive all the moving mechanism of the pump. Located on the outer end of the pipes 51 and 52 is the stuiing box illustrated in Fig. 7, in which a body is employed, this body beingv secured so that it cannot` rotate, and forming a tight joint with the pipe 51 by means of a follower 61 and packing 62.` an open space 63 being provided insidethe body 60 into which an inlet or suction pipe 64 connects.` The pressure pipe 52 passes through the open space 63 and a tight closure is formed in the body 60 by means of acking 65 compressed by a follower 66 wluch is forced into place by a nut 67. Formed onvthe follower 66 is ak' nipple 68 into which a pressure pipe 69 may be connected. The pipes 64 and nipple 68 are suitably`- connected to exhaust or pressure piping from or to the source of air supply 1n which `it is desired to vary the pressure. For the purpose of'allowing the movable bearing plate 16 to move freely withoutV in- Jurmg this piping, the arrangement shown 1n Fig. 1 may be used, in which the pipes 64 and 69 are carried down and connected to pipes 70 and 71 located directly below the pivot 15, so that a small angular movement ofthe movable bearing plate 16 may be taken- Leaesee has just been explained, the inlet pipes 51 are turned in the bearings 13 and 14, 22, and 23, and the cylinders 29 and 30 with the diaphragm plate 25, and the other connected parts, are rotated. With the two pipes 51 in a straight line, there would be no compression as there would be no movement of the bodies 35 in the cylinders 29 and 30. ln other words, the spaces 37 and 38 would be of a constant volume, and no compression would occur. lit, however, the movable bearing plate 16 is swung around on the pivot 15 by means of the worm 18, the pipes 51 would be thrown out of alinement with each otherfand there would be an oscillating movement of the pistons 35 inside the cylinders 29 and 30, this movement consisting in swinging the pistons 35 around the center pivots 26 and 27,

1 thus increasing and diminishing the volume of the spaces 37 and 38. rl`he amount that these spaces 1s increased or diminished in volume would depend upon the angularity of the pipes 51 with relation to each other, and might vary fromno compression at all, to a very high compression Where the volume of the spaces 37 and 38 is reduced to a e very low value at the end of the stroke. As

lifted from their seat and air is drawn into the spaces 37 or 38 through the ports 41, the

openings 50 and the inlet pipe 51, this air being taken in through the stationary pipes 64 at the ends of the machine.- y

Where the machine is used simply as a.- compressor, the pipes 64 mayl be omitted, and openings may be made in the body 60, so that air may be taken freely into the ma- `chine therethrough. Whenever it is desired to draw air, or other gas from any other source, the pipes 64 and suitable connections are of course necessary. y

W'hile we have illustrated and described' a device which is particularly adapted to compress air or other gases, it is evident that the apparatus illustrated may be used for pumping liquids and that the general principle of thecylinders 29 and 30, and their included parts, may be utilized in prime movers as well as in pumps by the addition of suitable valves. y

It will be noted that there are two spaces 37 and two spaces S8, and it will vfurther be noted that these spaces each go through an intake and a pressure movement for/ each revolution of the machine. There are, therefore, four complete piston movements for each revolution of the machine, thus producing a very even and constant pressure and suctioufrom the machine.

We claim as our invention :-y

1. A rotary-machine comprising a diaphragm; a pair of cylinder members secured on either side of said diaphragm and forming with said diaphragm two semi-cylindrical cavities, one on either side of said diaphragm, said members having elongated slots in the cylindrical walls thereof; a pair of pistons each located in o ne of said semicyl-indrical cavities, each of said pistonsbeing formed of a sectdr of a cylinder and'litting in gas tight relationship with the end ,and side walls of said semi-cylindrical cavity; means for, forming a slidable gas tight joint between the apex'of said sector and the center line of said diaphragm; a driving shaft secured to each of said pistons and projecting through said elongated slot; bearing means for'supporting said shafts in angular relationship with each other; and valve means for controlling the How of a iiuid to and from the spaces inside said cavities not filled by said pistons.

2. A `rotary machine comprising a diaphragm; a pair of cylinder members sej cured on either side of said diaphragm and forming with said diaphragm two semi-cylindrical cavities, one on either side of said diaphragm, said members having elongated slots in the cylindrical walls thereof; a pair of pistons, each located .in one of said semicylindrical cavities,'leacli of saidv pistons be ing formed of a sector of a cylinder and ttlng in gas tight relationship with the end and side walls of said semi-cylindrical lcavity; two center pivots located at right angles tol each other, formedA opposite sides of said diaphragm and so shaped as to form a slidable gas tight joint with the apex of said piston; a driving shaft secured to each of'said pistons and projecting -through said elongated slot; bearing means Vfor sup,- porting said shafts in angular relationship with each other; and valve means for controlling theA iiow of a Huid to and from the spaces inside said cavities not filled by` said pistons. i

3. A rotary machine comprising a diaphragm; a pair of cylinder `members secured on either side ofsaid diaphragm and forming with said diaphragm two semi-I cylindrical cavities, one on either side of said diaphragm, said members having elongated slots in the cylindrical walls thereof; a pair of pistons, each locatedin one of said semi-cylindrical cavities, each of said pistons being formgd of a sector of a cylinder and fitting in gas tight relationship with the end and side walls of said semi-cylindrical cavity; means for forming a slidable gas tight joint between the apex of said sector and the centerline of 'said diaphragm; a driving shaft secured to each of said pistons andI projecting through said elongated slot; stationary bearing means .for supporting one of `said shafts; movable bearing means for supporting the other of said shafts; means for adjusting said movable bearing means to vary the angle included between said shafts; and valve means for controlling the flow of a Huid to and from the spaces inside said cavities not filled by'said pistons. v 4,

4. A rotary machine comprising a diaphragm; a pair of cylinder members secured on either side ofsaid diapln'agm and forming with said diaphragm two semi-cylindrical cavities, one on either side of said diaphragm, said members having elongated slots in the cylindrical walls thereof; a pair of istons, each located in one of. said semicylmdrical cavities, each of said pistons *being formed of a sector of a cylinder and sides of said diaphragm and so shaped as to form a slidable gas tight joint with the `apex of said piston; a driving shaft secured to each of said pistons and projecting through said elongated slot; stationary bearing means for supporting -one @fY said shafts; movable bearing means for supporting the other of said shafts; means for adjusting said movable bearing means to vary the angle included between said shafts; and valve means for controlling the How of a fluidl to and from the spaces inside Said cavities not illedby said pistons.

5; A rotary machine comprising a diai phragm; a pair of cylinder )members vsecured on either side of said diaphragm and kforming with said diaphragm two semicylindrical cavities, one on either siden of said diaphragmsaid members having elongated slots yin the cylindrical walls thereof; an Iinclosing casing surrounding said diaphragm and said cylinder members and so placed -that some space is left between the inner surface o f said casing and the outer surface of said diaphragmand said cylin; der members; ventilating vanes in said space secured to said cylinder members and turning freely inside said casing; a pair of pistons, each located in one of said semicylindrical cavities, each of said .pistons being formed of a sector of a cylinder and fitting in gas-tight relationship with the end and side walls of said semi-cylindrical t cavity; means for forming a slidable gas,-

tight joint between the apex of said sector and the center line of said diaphragm; a driving shaftsecured to each of said pistons Vand projecting through said elongated slot; bearing means for support-ing said shafts in angular relationship with each other; and valve means for controlling the flow ofa yHuid to and from the spaces inside said cavities not lilled vby said pistons.

6. A rotary machine comprising a diaphragm; a pair of cylindrical members secured on either side of said diaphragm and forming with said diaphragm two Semicylindrical cavities, one on either side of said diaphragm, said members havihg elongated slots in the cylindrical walls thereof; an inclosing casing surrounding said diaj, phragm and said cylinder members and so placed that some space is left between the inner surface of said casing and the outer surface of said diaphragm and said cylinder members; ventilating vanes in said space secured to said cylinder members and turning freely inside said casing; a pair of pistons. each located in one ott said semicylindrical cavities, each of said pistons being formed of a sector of acylinder and fitting in gas tight relationship with the end and side walls of said semi-cylindricaly cavity: means for forming a slidable gas tight joint between the apex of said sector and the -center line of said diaphragm; a

. driving shaft secured to each of said pistons and projecting through said elongated slot; stationaryv bearing means for supporting one of said shafts; movable bearing means for supporting the other lof said shafts; means for adjusting said movable bearing means to vary the angle included between said" shafts; and valve means for controlling the flow of a fluid to and `from the spaces inside said cavities not'tilled by said pistons.

f7. A rotary machine comprising a diaphragm; a pair of cylinder members secured on either side of said diaphragm and forming with said diaphragm two lsemi-cylindrical cavities. one on either side of said diaphragm, said members having elongated slot-s in the cylindrical walls thereof; a pair of pistons. each located in one of said semit cylindrical cavities` each of said pistons belng formed o f a sector of a. cylinder and littmg 1n gas-tight relationship with the end and side walls of said semi-cylindrical cav.

ity: means for orming a slidable gas-tight joint between the apex of said sector and the center line of said diaphragm; a pair of hollow outer -driving shafts, each secured in one of said pistons and projecting through one of said elongated slots; a pair of inner pipes each carried inside one of said hollow outer driving shafts and each secured in one of said pistons: valve means for controlling the flow of a. Huid through s aid shaft and said pipe to and from the spaces incense inside said cavities not lled by sid pistons, and bea-ring means for supp rting' said shafts in angular relationship with each other. a

8. A rotary machine comprising a diaphragm; a pair of cylinder members secured on either side of said diaphragm and *forming with said diaphragm two semi-cylindrical cavities, one on either side of said diaphragm. said ymembers having elongated slots in the cylindrical walls thereof; a pair of pistons, each located vin one of said semicylindrical cavities, each of said pistons being formed of a sector o a cylinder and tt-ing in gas tight relationship with the end and side walls of said semi-cylindrical l cavity; -meansitor forming a slidable gastight joint between the apex of said sector and the'center line of said diaphragm; a pair of hollow1 outer driving shafts, each secured in one ot said pistons and projecting through one oi'said elongated slots; a pair ot inner pipes each carried inside one of said hollow outer driving shafts and each secured in' one ci said pistons; valve means located in said pistons tor controlling the dow of a. duid through said shaft and said pipe to and from the spaces inside said cavities not lled by said pistons; and bearing means tor supporting said shafts in angular relationship with each other.y

9. A rotary machine comprising a diaphragm; a pair of cylinder members 'sey cured on either side ci said diaphragm and l 'forming with said diaphragm two semisaidsector and the center line of said diaphragm; a.l pair of hollow outer driving shafts, each secured in one oi said pistons and projecting through one ot said elongated slots; a. pair ot inner pipes each carried inside one of said hollow outer driving shafts and each secured-vin one of said pistons; valve means for controlling the dow ofy a duid through said shaft and said pipe toand from the spaces inside said cavities not lled by said pistons, and adjustable bearing means for supporting said' shafts in angular relationship with "each other.

10. A rotary machine 'comprising a diaphragm; a pair of cylinder members secured on either side of said diaphragm and forming with said diaphragm two semi-cylindrical cavities, one on either side of said diaphragm, said members having elongated slots in the cylindrical Walls thereof; a pair of pistons, each of said pistons being formed of a sector of a cylinder and fitting in gastight relationship With the end and side Walls of said semi-cylindrical cavity; means for forming a slidable gas-tight joint between the apexof said sector and the center line of said diaphragm; a pair of hollow outer driving shafts, each secured in one of said pistons and projecting through one of said elongated slots; a pair of inner pipes each carried inside one of said hollow outer dr1v1ng shafts and each securedy in one of said pistons; valve means for controlling the iow of a fluid through said shaft and said pipe to and from the spaces inside said cavities not filled by said pistons,`means for supplying and taking 0H fluid from said shaft and said pipe, and means for supporting said shafts in angular relationship With each other.

In testimony whereof, We have hereunto set our hands at Torrance, California, this 6th day of July, 1916.

HENRY (T. CYPHERS. FRANK E. HOLMES. 

